唐天壇遺址回填土主要病害、成因分析及擬採用的治理措施

The Primary Diseases, Causes and Planning Measures of Backfilled Soil of the Site of Temple of Heaven of

通過對唐天壇遺址回填土的大量調查與實驗分析，唐天壇遺址的主要病害是牆體的剝落、剝蝕及開裂，生長大量的低等植物及雜草，陛階階道的坍塌，牆基的凹進等。產生這些病害的原因除與遺址本身的組成及建造工藝有密切關係外，還與溫濕度、特別是雨水沖刷、人為因素的影響有極大關係。根據這些病害及其產生的機理，提出了相應的治理措施。這些研究為唐天壇遺址的進一步保護提供寶貴資料。

This article describes an intensive survey and analyses of the Tang Dynasty remains of Tiantan, The main problems are flaking, denudation and crazing of walls; excess of low foliage and weeds; collapse of roads around platform-coping; ingress of grass roots into platform-walls, etc. In addition to the original design and architectural techniques of site, the causes of these problems are closely related to temperature and moisture, especially rainwater erosion. Based on these problems and their mechanisms, a series of appropriate protective measures are suggested. Hopefully, these results will become a valuable datum of future restoration interventions.